1. This rule was one of Pickett's mainly intended for Trigonometry yet it has a range of general purpose scales..
2. This is an earlier version of the N1010-ES.
3. This rule and 1010-T (2) are virtually identical except for the Pickett logo which changes from the plain triangle to the triangle in a circle with inverted colour scheme.

Brand	Pickett
Model	1010-T
Country of Manufacture	USA
Scales Front	K, A [B, ST, T, S, C] D, DI
Scales Back	DF [CF, CIF, CI, C] D, L
Number of Scales	16
Slide Rule Materials	Aluminium
Cursor Materials	Metal/Plastic with Metal Screws
Cursor Lines	1 Front, 1 Rear
Scale Length	25 cm
Length	30.7 cm
Width	3.2 cm
Condition	Good
Documentation	None
Accessories	None